/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
typedef [TTuple](API\Runtime\Core\Misc\TTuple)< int32, int32, int32, [ERigTransformType::Type](API\Plugins\ControlRig\Rigs\ERigTransformType__Type) > TInstructionSliceElement